RT Journal Article SR Electronic T1 Severe myopericarditis following the third dose of an mRNA COVID-19 vaccine: utility of a multimodal treatment approach JF BMJ Case Reports JO BMJ Case Reports FD BMJ Publishing Group Ltd SP e249533 DO 10.1136/bcr-2022-249533 VO 15 IS 6 A1 Rachel Olivia Fritz A1 Omkar Betageri A1 Teja Chakrala A1 Justin Kim A1 Mohammad Al-Ani A1 Abdullah Omar YR 2022 UL http://casereports.bmj.com/content/15/6/e249533.abstract AB We report a rare case of severe myopericarditis in a healthy man in his 20s after the third dose of an mRNA COVID-19 vaccine. His symptoms and troponinemia resolved with a beta-blocker in addition to standard anti-inflammatory therapy, highlighting the utility of multimodal therapy.